Define a REST API response header

task brazil Updated Sep 10, 2026 1 min read define-scripted-api-response-header.md

Define one or more REST API response headers in a REST API.

Before you begin

Role required: web_service_admin

Procedure

Create a REST response header in one of the following ways.

Option	Procedure
Create a response header from a REST API	Navigate to All > System Web Services > Scripted REST APIs. Select a scripted REST API record. In the Response Headers related list, select New.
Create a response header and associate it with a REST API	Navigate to All > Filter and enter `sys_ws_response_header.form`.1. Enter `sys_ws_response_header.form` in the filter navigator. 2. In the API field, select or enter the API to associate with the response header.

2. In the **Header Name** field, add the name of the new header.

In the Example value field, enter an example of a valid header value.
Select Submit.
Repeat these steps for each response header that you want to define.

Result

The response headers that you added are included in the exportable OpenAPI specification in the REST API Explorer with a type: string schema definition. For more information about exporting OpenAPI specifications, see Export to OpenAPI specification.

Parent Topic:Create a scripted REST API

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---
title: Define a REST API response header
description: Define one or more REST API response headers in a REST API.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/api-reference/rest-api-explorer/define-scripted-api-response-header.html
release: brazil
product: REST API Explorer
classification: rest-api-explorer
topic_type: task
last_updated: "2026-09-10"
reading_time_minutes: 1
breadcrumb: [Create a scripted REST API, Scripted REST APIs, REST APIs, Web services, API implementation, API implementation and reference]
---

# Define a REST API response header

Define one or more REST API response headers in a REST API.

## Before you begin

Role required: web\_service\_admin

## Procedure

1.  Create a REST response header in one of the following ways.

<table id="choicetable_rv3_mwc_j3c"><thead><tr><th align="left" id="d248607e60">

Option

</th><th align="left" id="d248607e63">

Procedure

</th></tr></thead><tbody><tr><td id="d248607e69">

**Create a response header from a REST API**

</td><td>

1.  Navigate to **All** &gt; **System Web Services** &gt; **Scripted REST APIs**.
2.  Select a scripted REST API record.
3.  In the **Response Headers** related list, select **New**.


</td></tr><tr><td id="d248607e110">

**Create a response header and associate it with a REST API**

</td><td>

Navigate to **All** &gt; **Filter** and enter `sys_ws_response_header.form`.1.  Enter `sys_ws_response_header.form` in the filter navigator.
2.  In the **API** field, select or enter the API to associate with the response header.


</td></tr></tbody>
</table>2.  In the **Header Name** field, add the name of the new header.

3.  In the **Example value** field, enter an example of a valid header value.

4.  Select **Submit**.

5.  Repeat these steps for each response header that you want to define.


## Result

The response headers that you added are included in the exportable OpenAPI specification in the REST API Explorer with a `type: string` schema definition. For more information about exporting OpenAPI specifications, see [Export to OpenAPI specification](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/api-reference/rest-api-explorer/export-openapi-specification.md).

**Parent Topic:**[Create a scripted REST API](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/api-reference/rest-api-explorer/t_CreateAScriptedRESTService.md)